I added a value for the background element being "color="red";" am i going in the right direction

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**

<style>
:root {
  --red-color: red;
}
.red-box {

  background: var(--red-color) color="red";
  height: 200px;
  width:200px;
}
</style>
<div class="red-box"></div>
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36

Challenge: Improve Compatibility with Browser Fallbacks

Link to the challenge:

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